public class VariableDemo{
   public static void main(String[] args){
       int ageOfStudent = 5;
	   double scoreOfStudent = 80.0;
	   char levelOfStudent = 'B';
	   System.out.println("age\t score\t level");
	   System.out.printf("%4d\t%4.1f\t%4c",
	       ageOfStudent,scoreOfStudent,levelOfStudent);
   }
}